Convert, Preview & Render ZPL commands to PNG, JPG & PDF from Docker!

ZPLPrinter Web API for Docker allows you to Convert, Preview and Render raw ZPL (Zebra Programming Language) commands to well known image and document formats like PNG, JPG, PDF, PCX, Zebra GRF ASCII hex, Zebra EPL Binary Graphic, Honeywell-Intermec FingerPrint Binary Graphic, EPSON ESC/POS NV Binary Graphic & HP PCL Binary Graphic from Any Development Platform and Programming Languages (.NET, Java, PHP, Javascript, Python, Ruby, and more!)

Features at a Glance

Overview

Designed by following some of the REST principles, ZPLPrinter Web API for Docker responds to a simple HTTP POST by specifying the ZPL commands and printer settings through a JSON object in the request body, returning the output rendering in the image or document format specified through the Accept header.

Help Doc Topics

Download and run ZPLPrinter Web API for Docker

ZPLPrinter Web API for Docker is available at Docker Hub registry.

• To pull/download the Docker image, please type the following from a Terminal:

  AMD
  docker pull neodynamic/zplprinterwebapi:5.0.10
  ARM
  docker pull neodynamic/zplprinterwebapi:5.0.10-arm64

• To run the Docker image, please type the following from a Terminal:

  AMD
  docker run -it --rm -p 8080:80 neodynamic/zplprinterwebapi:5.0.10
  ARM
  docker run -it --rm -p 8080:80 neodynamic/zplprinterwebapi:5.0.10-arm64
   License Registration    Evaluation Mode Limitations    Change Log

Run ZPLPrinter WebAPI on a Custom Port

By default, our Docker image exposes ports 80 and 443 only. If you want to expose and use another different port, then do the following.

1. Let's suppose you want to use port 12345. Create a new Dockerfile and edit it by pasting the following content:
   
   

                                   
   FROM neodynamic/zplprinterwebapi:5.0.10
   EXPOSE 12345
                                   
                               

2. Save that file and then build it...
   docker build -t neodynamic/my_custom_zplprinterwebapi:5.0.10 .
3. Now run the new custom Docker image with the following params:
   docker run -it --rm -p 12345:12345 -e "ASPNETCORE_URLS=http://+:12345" neodynamic/my_custom_zplprinterwebapi:5.0.10

How To Use It - Basic Sample

The following source code invokes the ZPLPrinter Web API for Docker to generate a PNG image for the specified ZPL Commands. For more advanced settings please refer to the ZPLPrintJob JSON Object

•   CURL
•   PHP
•   RUBY
•   PYTHON
•   PERL
•   JAVA
•   C#
•   JS/XHR
•   NODE

                    
curl -X POST "http://localhost:8080/ZPLPrinter" \
     -H  "Accept: image/png" \
     -H  "Content-Type: application/json" \
     -d "{\"zplCommands\":\"^XA^FO30,40^ADN,36,20^FDHello World^FS^FO30,80^BY4^B3N,,200^FD12345678^FS^XZ\"}" \
     --output label.png
                        
                

                    
$data = array(
  'zplCommands' => '^XA^FO30,40^ADN,36,20^FDHello World^FS^FO30,80^BY4^B3N,,200^FD12345678^FS^XZ'
);

$options = array(
  'http' => array(
    'method'  => 'POST',
    'content' => json_encode( $data ),
    'header' =>  "Content-Type: application/json\r\n" .
                "Accept: image/png\r\n"
    )
);

$context  = stream_context_create( $options );
$url = 'http://localhost:8080/ZPLPrinter';
$response = file_get_contents( $url, false, $context );
file_put_contents('label.png', $response);
                        
                

                    
require 'net/http'
require 'uri'
require 'json'

uri = URI.parse("http://localhost:8080/ZPLPrinter")

header = {'Accept':'image/png', 'Content-Type': 'application/json'}

data = {zplCommands: '^XA^FO30,40^ADN,36,20^FDHello World^FS^FO30,80^BY4^B3N,,200^FD12345678^FS^XZ'}

http = Net::HTTP.new(uri.host, uri.port)
request = Net::HTTP::Post.new(uri.request_uri, header)
request.body = data.to_json

response = http.request(request)

open('/tmp/label.png', 'wb' ) { |file|
    file.write(response.body)
}
                        
                

                    
import requests
import json

url = "http://localhost:8080/ZPLPrinter"

jsondata = json.dumps( {"zplCommands": "^XA^FO30,40^ADN,36,20^FDHello World^FS^FO30,80^BY4^B3N,,200^FD12345678^FS^XZ"} )

headers = {
    'content-type': "application/json",
    'accept': "image/png"
    }

response = requests.request("POST", url, data=jsondata, headers=headers)

if response.status_code == 200:
    with open("label.png", 'wb') as f:
        f.write(response.content)

                        
                

                    
use LWP::UserAgent;
my $ua = LWP::UserAgent->new;
my $server_endpoint = "http://localhost:8080/ZPLPrinter";
my $req = HTTP::Request->new(POST => $server_endpoint);
$req->header('content-type' => 'application/json');
$req->header('accept' => 'image/png');

my $post_data = '{ "zplCommands" : "^XA^FO30,40^ADN,36,20^FDHello World^FS^FO30,80^BY4^B3N,,200^FD12345678^FS^XZ" }';

$req->content($post_data);

my $resp = $ua->request($req);
open FILEHANDLE, ">label.png";
print FILEHANDLE $resp->{_content};
close FILEHANDLE;
                        
                

                    
CloseableHttpClient client = HttpClients.createDefault();
HttpPost httpPost = new HttpPost("http://localhost:8080/ZPLPrinter");
 
String json = "{\"zplCommands\" : \"^XA^FO30,40^ADN,36,20^FDHello World^FS^FO30,80^BY4^B3N,,200^FD12345678^FS^XZ\"}";
StringEntity entity = new StringEntity(json);
httpPost.setEntity(entity);
httpPost.setHeader("Accept", "image/png");
httpPost.setHeader("Content-type", "application/json");
 
CloseableHttpResponse response = client.execute(httpPost);
HttpEntity entity = response.getEntity();
if (entity != null) {
    try (FileOutputStream outstream = new FileOutputStream(new File("label.png"))) {
        entity.writeTo(outstream);
    }
}
client.close();     
                        
                

                    
string DATA = "{\"zplCommands\" : \"^XA^FO30,40^ADN,36,20^FDHello World^FS^FO30,80^BY4^B3N,,200^FD12345678^FS^XZ\"}";

var request = (HttpWebRequest)WebRequest.Create("http://localhost:8080/ZPLPrinter");
request.Method = "POST";
request.ContentType = "application/json";
request.ContentLength = DATA.Length;
request.Accept = "image/png";

using (var requestWriter = new StreamWriter(request.GetRequestStream(), System.Text.Encoding.ASCII)){
    requestWriter.Write(DATA);
}

var webResponse = request.GetResponse();
using (var stream = webResponse.GetResponseStream())
using (var fileStream = File.OpenWrite("label.png"))
{
    var bytes = new byte[4096];
    var read=0;
    do
    {
        if (stream == null) {continue;}
        read = stream.Read(bytes, 0, bytes.Length);
        fileStream.Write(bytes, 0, read);
    } while (read != 0);
}

                        
                

                    
var data = JSON.stringify({
    "zplCommands": "^XA^FO30,40^ADN,36,20^FDHello World^FS^FO30,80^BY4^B3N,,200^FD12345678^FS^XZ"
});

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function () {
    if (this.readyState === 4) {
    console.log(this.responseText);
    }
});

xhr.open("POST", "http://localhost:8080/ZPLPrinter");
xhr.setRequestHeader("content-type", "application/json");
xhr.setRequestHeader("accept", "image/png");

xhr.send(data);
                        
                

                    
var request = require('request');
 
var headers = {
    'Accept': 'image/png',
    'Content-Type': 'application/json'
}
 
var options = {
    url: 'http://localhost:8080/ZPLPrinter',
    method: 'POST',
    headers: headers,
    json: {"zplCommands": "^XA^FO30,40^ADN,36,20^FDHello World^FS^FO30,80^BY4^B3N,,200^FD12345678^FS^XZ"}
}
 
request(options, function (error, response, body) {
    if (!error && response.statusCode == 200) {
        console.log(body);
    }
})
                        
                

The Accept Header

The desired output rendering format must be specified through the Accept header. The supported formats are the following:

Web API Doc

ZPL Commands Support

ZPLPrinter Web API for Docker supports most of the ZPL formatting and control commands. The following table lists the supported commands as well as the ones which are under work. Not listed or unsupported commands will be skipped in the parsing stage.

Licensing

On-Premise - Full Deployment Control

ZPLPrinter Web API is licensed for Private On-Premise environments giving you full control on the infrastructure where our product will run on. Please refer to Licensing model and prices...

 License Registration

When you buy a commercial license of ZPLPrinter Web API for Docker, you are provided with license information (LicenseOwner & LicenseKey) to register the product. The license information must be specified to the Docker image as environment variables as folows:

 Change Log

• 5.0.10 2024-11-13
  • Fixed! ^FM command handling.
  
  
• 5.0.9 2024-09-11
  • Fixed! Text offset for ^FB command when center text alignment is specified.
  • Fixed! Text overlap for ^FB command.
  
  
• 5.0.8 2024-08-01
  • Fixed! Use QR Code ECC M if it is not specified by the ^BQ command.
  
  
• 5.0.7 2024-05-31
  • Fixed! ^BC command with UCC check digit enabled but invalid data to encode was not rendered.
  
  
• 5.0.6 2024-04-26
  • Fixed! ^GF command ASCII encoding when parsing non well formatted image data.
  
  
• 5.0.5 2024-04-24
  • Fixed! Added HTTP Response Headers for security.
  
  
• 5.0.4 2024-03-04
  • Fixed! ^BC command was not rendered under some special cases.
  
  
• 5.0.3 2024-03-01
  • Fixed! ^BC command (Code 128 CharSet C) was not rendered under some special cases.
  
  
• 5.0.2 2024-01-02
  • New! Added Rotation, Justification and IsReverse props for rendered ZPLElement.
  • Fixed! ^CF command should set the default font size even if the specified font does not exist.
  
  
• 5.0.1 2023-11-23
  • Fixed! Text size and location rendering.
  
  
• 5.0 2023-11-20
  • New! Added XML-Enabled ZPL Formats support.
  • New! Added HP PCL Binary output format rendering. This allows converting ZPL commands to HP PCL graphic format.
  • New! Added EnableGraphicsCache prop to allow the ^GF commands output rendering to be cached.
  • New! Added EnablePrinting prop to format the output rendering commands for printing scenarios.
  • Improved! ^BR command rendering when DataBar Expanded is specified.
  • Improved! EAN / UPC barcode commands rendering.
  
  
• 4.0.8 2023-11-13
  • Fixed! Field Hexadecimal Indicator processing.
  
  
• 4.0.7 2023-08-30
  • Fixed! ISO-8859-2 Latin-2 Eastern European missing chars when ZPL Font 0 is specified.
  
  
• 4.0.6 2023-08-07
  • Fixed! Text vertical offset under some specific scenarios.
  
  
• 4.0.5 2023-07-03
  • Fixed! ^BC custom font size settings.
  • Fixed! Text field rotation when CF is involved.
  
  
• 4.0.4 2023-05-24
  • Fixed! Rendering location vertical offset for Linear 1D barcode 180 degrees rotation.
  
  
• 4.0.3 2023-05-10
  • Fixed! Code 128 barcode rendering.
  
  
• 4.0.2 2023-03-28
  • Fixed! Human readable text scaling for ^BC command.
  • Improved! PDF generation performance.
  
  
• 4.0.1 2023-03-22
  • Fixed! Applied search priority on the different internal drives for ^XG, ^IM and ^XF commands.
  
  
• 4.0 2023-03-09
  • New! Added support for ~DB (Download Bitmap Font) command.
  • New! Added invertColors property to reverse the pixel colors of the output image.
  • New! Added compressionQuality property to specify the compression quality level of the output image (JPG/JPEG format only).
  • New! Added traceRenderedElements property. It will return the list of ZPL commands that are rendered including the location and size. Available for JSON outputs only.
  • New! Automatic PNG output optimization reducing the file/stream size.
  • New! Added support for ^BQ command's Mask parameter.
  
  
• 3.0.20 2023-02-22
  • Fixed! Y-offset when text contains acute accent.
  • Fixed! Y-offset when barcode human readable text is empty.
  • Fixed! ^BC data encoding.
  
  
• 3.0.19 2023-01-17
  • Fixed! Text block size which affected text alignment.
  
  
• 3.0.18 2022-12-30
  • Fixed! Big numbers parsing under counters scenarios.
  • Fixed! Rendering logic when ^FN, ^SN or ^SF are involved in the same label format.
  • Fixed! Many font size rendering releated issues.
  
  
• 3.0.17 2022-12-20
  • Fixed! Spaces in some ZPL commands params might invalidate the parsing.
  • Fixed! Ignore dashes when GS1 128 with AI (00) is encoded.
  • Fixed! GS1-128 (UCC/EAN-128) human readable text font type.
  • Fixed! Default font size specified through ^CF command was ignored.
  • Fixed! Barcode rotation for ^BC command when a custom font setting is specified.
  
  
• 3.0.16 2022-12-06
  • New! Support for ^BC command with custom font settings.
  • Fixed! ^BC command data parsing.
  • Fixed! ^SN command which ignored any content other than digits.
  
  
• 3.0.15 2022-10-27
  • Fixed! ^FN command was not correctly handled.
  • Fixed! EAN/UPC barcode rendering location.
  • Fixed! ^FB text offset when bitmap resident font is used.
  
  
• 3.0.14 2022-10-10
  • Fixed! Allow Base64 images with invalid padding.
  • Fixed! ^FT horizontal offset for ^FB text block when using `R` rotation param in ^A command.
  
  
• 3.0.13 2022-09-21
  • Fixed! CRC calc and validation when Z64 image format is specified.
  
  
• 3.0.12 2022-08-31
  • Fixed! Field text block rendering location when rotating 90 and 270 degrees.
  • Fixed! ^FO, ^FT, ^FW commands when specifying right alignment.
  • Fixed! Print orientation command rotates labels incorrectly.
  • Fixed! ^ST invalid date handling.
  
  
• 3.0.11 2022-07-22
  • Fixed! font height issue in some special cases
  
  
• 3.0.10 2022-07-04
  • Fixed! ^A command offset rendering location
  
  
• 3.0.9 2022-06-27
  • Fixed! ^FB rotated size and rendering location.
  • Fixed! ^FO and ^FT negative invalid X & Y param values.
  
  
• 3.0.8 2022-06-24
  • Fixed! Maxicode rendering location.
  
  
• 3.0.7 2022-06-01
  • Fixed! Aztec Code and QR Code module size range validation.
  • Fixed! Honoring the Zebra bug "^BY Command Parameter Causes a Position Shift of the QR Code Barcode".
  
  
• 3.0.6 2022-05-12
  • New! Added support for ^FA Field Allocate command.
  • Fixed! ^FB text rendering and params values range validation when parsing.
  
  
• 3.0.5 2022-04-20
  • Fixed! ^SN default value parsing.
  • Fixed! Font D & A vertical offset for text boxes commands.
  
  
• 3.0.4 2022-03-18
  • Fixed! ^BC barcode rendering. Space char was not ignored when `D` mode was specified.
  
  
• 3.0.3 2022-03-11
  • CRITICAL Fixed! QR Code Auto Encoding - Wrong Numeric Data Bits calculation.
  • Fixed! Aztec Code runes encoding.
  
  
• 3.0.2 2022-03-07
  • Fixed! ^BX Data Matrix text encoding.
  
  
• 3.0.1 2022-03-02
  • Fixed! At sign glyph size of Font 0.
  • Fixed! ^GB command rendering when stroke thickness is bigger than available rect size.
  • Fixed! Text offset when chars scaling is involved.
  
  
• 3.0 2022-02-15
  • New! Support for ^FM Multiple Field Origin Locations command.
  • New! Support for ^FC Field Clock command.
  • New! Support for ^SL Set Mode and Language (for Real-Time Clock) command.
  • New! Support for ^SO Set Offset (for Real-Time Clock) command.
  • New! Support for ^ST Set Date and Time (for Real-Time Clock) command.
  • New! Added Zebra EPL Binary output format rendering. This allows converting ZPL commands to Zebra's EPL graphic format.
  • New! Added Honeywell-Intermec FingerPrint Binary output format rendering. This allows converting ZPL commands to FingerPrint graphic format.
  • New! Added EPSON ESC/POS NV Binary output format rendering. This allows converting ZPL commands to ESC/POS graphic format.
  • Improved! QR Code Auto Encoding.
  
  
• 2.0.32 2022-02-03
  • Fixed! ^FO right justification param value was ignored.
  
  
• 2.0.31 2022-01-24
  • Fixed! Font scaling when resident scalable fonts are involved.
  • Fixed! Font scaling for rotated text.
  
  
• 2.0.30 2021-12-23
  • Fixed! Handled invalid graphic extension for ^XG and ^IL commands.
  • Fixed! Graphic rendering location when ^FT command is used.
  • Fixed! Text rendering offset when rotation is specified in the ^A command.
  • Fixed! Barcode not rendered when '00' is the application identifier and data to encode has 20 digits.
  
  
• 2.0.29 2021-11-13
  • Fixed! Offset text location for ^FB and ^A commands when using Button Up orientation.
  • Fixed! ^BY wide bar to narrow bar width ratio.
  
  
• 2.0.28 2021-10-31
  • Fixed! Offset text location for ^FB command when using Button Up orientation.
  
  
• 2.0.27 2021-10-14
  • Fixed! ^BY param validation for wide bar to narrow bar width ratio.
  
  
• 2.0.26 2021-10-01
  • Fixed! ^FN commands was not handled if they were inside a format without using ^DF and ^XF commands.
  • Fixed! Better support for commands that are not specified in the expected order.
  • Fixed! Resident scalable font size rendering when Height and Width params are the same.
  • Fixed! Justification param parsing for ^FO, ^FT, and ^FW commands.
  • Fixed! Invalid rotation param in ^FW command.
  • Fixed! Removed leading and trailing spaces for each text lines when rendering ^FB command.
  
  
• 2.0.25 2021-09-22
  • Fixed! QR Code was not rendered due to the previous update.
  
  
• 2.0.24 2021-09-15
  • Fixed! Auto encoding of UTF-8 (Unicode) text into QR Code.
  
  
• 2.0.23 2021-09-06
  • Fixed! Linear barcode bar ratio parsing.
  
  
• 2.0.22 2021-08-13
  • Fixed! Text fitting inside text boxes.
  • Fixed! Horizontal offset for rotated text.
  
  
• 2.0.21 2021-08-12
  • Fixed! Disabled adding hyphen/dash char when word wrapping needs to be applied.
  • Fixed! Ignore invalid QR Code Mode param.
  
  
• 2.0.20 2021-08-11
  • New! Added Metrics endpoint /metrics
  • Fixed! Offset text location for some special cases.
  • Fixed! Escaped breakline for text boxes was not handled correctly.
  • Fixed! Line spacing for bitmap resident fonts in text boxes.
  • Fixed! Font scaling in text boxes.
  • Fixed! Breaklines were ignored if they were separated by empty strings in text boxes.
  
  
• 2.0.19 2021-08-09
  • Fixed! Text size when specifying scalable font with same Width and Height.
  • Fixed! Handling case senstive fonts and graphics name.
  • Fixed! PDF417 aspect ratio when no columns nor rows are specified.
  
  
• 2.0.18 2021-07-28
  • Fixed! Removed background color in barcodes.
  
  
• 2.0.17 2021-07-27
  • Fixed! ^BQ QR Code offset rendering location.
  
  
• 2.0.16 2021-07-20
  • Fixed! ^BC data encoding when certain Code 128 invocation characters are specified.
  
  
• 2.0.15 2021-07-06
  • Fixed! Empty ^FD command was invalidating the next rendering command if any.
  
  
• 2.0.14 2021-06-02
  • Fixed! Barcode location when rotated orientation (clockwise 90 degrees) is specified.
  • Fixed! Rect rounded corner was not rendered if specified.
  • Fixed! Field Orientation auto-justification param.
  
  
• 2.0.13 2021-04-14
  • Fixed! Bug in graphic-related commands.
  • Fixed! Bug when parsing invalid chars in ^FD command.
  
  
• 2.0.12 2021-03-31
  • Fixed! Added some missing Latin1 chars to Resident Font D.
  
  
• 2.0.11 2021-03-11
  • Fixed! ^LL param value less than 832 dots was ignored.
  • Fixed! Shapes were not rendered if stroke thickness param was zero.
  
  
• 2.0.10 2021-03-10
  • Fixed! Support for CORS.
  
  
• 2.0.9 2021-03-06
  • New! Added Health Check endpoint /health
  • Fixed! DataMatrix automatic Unicode chars encoding.
  • Fixed! DataMatrix rotation.
  • Fixed! Code 39 auto upper-case conversion.
  • Fixed! Skip invalid Code 128 encoding chars.
  • Fixed! Resident scalable fonts stretching.
  • Fixed! Text location with Rotated and Bottom Up orientations.
  • Fixed! Image/Graphic location when ^FT command is involved.
  • Fixed! Multiline text rendering for ^FB & ^TB commands.
  • Fixed! ^GB, ^GC, ^GE, ^GD param validation and default values.
  • Fixed! ^CW not taken effect with cached fonts.
  
  
• 2.0.8 2021-02-20
  • Fixed! Field reverse was not working as expected when data field was empty.
  
  
• 2.0.7 2021-02-15
  • Fixed! Bug when text wrapping is required.
  
  
• 2.0.6 2021-02-10
  • Fixed! Default value params where not used for invalid or out of range values.
  
  
• 2.0.5 2021-02-09
  • Fixed! CRC validation for graphic commands.
  
  
• 2.0.4 2021-02-05
  • Fixed! Horizontal Tab char was ignored when parsing.
  
  
• 2.0.3 2021-01-30
  • New! Support for custom font files
  
  
• 2.0.2 2020-12-09
  • Fixed! Text rendering location for some special cases.
  • Fixed! Barcode default boolean values parsing.
  
  
• 2.0.1 2020-12-04
  • Fixed! CRC validation for PNG Base64 image encoding.
  
  
• 2.0 2020-12-02
  • New! Support for ^SF Serialization Field command.
  • New! Support for ^SN Serialization Data command supporting replication copies.
  • New! Support for ^PQ Print Quantity command.
  • New! Support for ^TO Transfer Object command.
  • New! Support for ^BT TLC-39 Barcode command.
  • New! Support for ^BB Codablock Barcode command.
  • New! Support for ^B4 Code 49 Barcode command.
  • New! Support for drawing RFID image on labels where ^RF, ^RQ, ^WF, or ^WT commands might be present. It can be disable through the drawRFID property.
  • New! Added support for watermark image (in PNG or JPG formats) through the watermarkImageBase64 and watermarkOpacity properties.
  • Improved! RTL text rendering when mixed with non-RTL text.
  
  
• 1.5.17 2020-11-27
  • Fixed! ^CF command was not correctly parsed.
  
  
• 1.5.16 2020-10-23
  • Fixed! GS1-128 (UCC/EAN-128) barcodes rendered as Code128 instead.
  
  
• 1.5.15 2020-10-20
  • Fixed! ^BY command when issued more than once inside a single label.
  • Fixed! ^LL command when issued more than once inside a single label.
  • Fixed! ^BC command does not render barcode is missing start subset is missing.
  • Fixed! ^GF & ^DY parsing when binary data is specified.
  
  
• 1.5.14 2020-10-08
  • Fixed! In some cases, text being cut off under Linux.
  • Improved! Ignore invalid command prefix char (caret by default) duplication.
  
  
• 1.5.13 2020-09-16
  • Fixed! Allowed invalid ^A command params where orientation value is not appended to the font name.
  
  
• 1.5.12 2020-09-15
  • Fixed! Error "Index was outside the bounds of the array" when processing ^GF command.
  
  
• 1.5.11 2020-09-14
  • Fixed! Auto-convert invalid negative number when parsing command params.
  
  
• 1.5.10 2020-09-05
  • Fixed! Concurrency issue - Error: An item with the same key has already been added.
  
  
• 1.5.9 2020-08-28
  • Fixed! Blank label is generated when no printable commands are present.
  • Fixed! ^DF and ^XF commands were not correctly processed.
  
  
• 1.5.8 2020-08-25
  • Fixed! Wrong dash char in Font 0
  
  
• 1.5.7 2020-08-24
  • Fixed! ^FT command was not correctly handled when X or Y param is zero.
  
  
• 1.5.6 2020-08-21
  • Fixed! System.NullReferenceException when PDF output rendering is specified.
  
  
• 1.5.5 2020-08-20
  • Fixed! Font rendering issues.
  
  
• 1.5.4 2020-08-19
  • New! Added forceLabelWidth & forceLabelHeight settings that when true, the ^PW and ^LL commands are ignored and the LabelWidth and LabelHeight properties values are used instead.
  • Fixed! Wrong char substitution when a scalable font is involved.
  • Improved! Memory usage management.
  
  
• 1.5.3 2020-08-17
  • Fixed! Shapes like Rects were not correctly rendered when FT location command was involved.
  • Fixed! Data-related commands param was trimmed ignoring any existing leading and trailing spaces.
  
  
• 1.5.2 2020-06-10
  • Fixed! Trimming commands' params to avoid invalid parsing.
  
  
• 1.5.1 2020-04-13
  • Fixed! Some ^CI encodings were not correctly handled.
  • Fixed! Wrong data encoding for EAN & UPC barcodes.
  • Fixed! Wrong rendering position for rotated EAN & UPC barcodes.
  • Improved! MaxiCode barcode rendering for 8dpmm (203dpi) and 12dpmm (300dpi) resolutions.
  
  
• 1.5 2020-04-03
  • Fixed! Bug in integer command parameters parsing when decimal point is found.
  • Fixed! Case-sensitive resource names involving fonts, graphics/images and formats.
  
  
• 1.4 2020-04-01
  • Fixed! Bug when parsing ~DG command containing graphic in ASCII format.
  • Fixed! Bug when parsing ~DU command.
  • Fixed! Font name resolving when no file extension is provided to ^A@ command.
  
  
• 1.3 2020-03-10
  • Fixed! Added missing Turkish chars to ZPL Font 0.
  • Fixed! Barcode with human readable text at the bottom was not correctly rendered when ^FT command is involved.
  • Fixed! UPS MaxiCode barcode rendered size.
  • Fixed! Backslash char (Hex 5C) mapped to the correct char depending on ^CI encoding.
  • Fixed! In some cases, Aztec Code barcode symbol is not fully rendered.
  
  
• 1.2 2020-03-03
  • Fixed! ^CC, ^CT and ^CD commands were not correctly handled.
  • Fixed! Applied filter to numeric based barcodes to ignore invalid data.
  
  
• 1.1 2020-02-06
  • Fixed! Codabar (^BK) data encoding.
  • Fixed! Wrong text rendering when specifying right text alignment for Field Block (^FB).
  
  
• 1.0 2020-01-21
  • New! Initial release.